Projection apparatus



July 27 1926. 1,594,267

. N. P. JONES PROJECTION APPARATUS Filed July 14. 1925 2 Sheets-Sheet 1 WITNESS: INVENTOR.

A TT ORNE Y.

July 27,1926. 1,594,267

' N. P. JONES I PROJECTION APPARATUS I Filed July 14. 1 925 2 Sheets-Sheet 2 WITNESS: IN VEN TOR.

A TTORNE Y.

PATENT OFFICE...

mason r. JONES, or waraa'rown, new You PROJECTION APPARATUS.

Application'fled July 14, 1025. Serial 1m. 43,012.

This invention relates to signs, and the principal object of the invention is to provide means for projecting a series of signs on a screen in succession and at spacedintervals, with means for automatically extinguishing light while the signs are being moved.

Another object of the invention is to pro vide a cylindrical member having sign holding apertures therein, with means for giving said member a step by step rotary move ment by a constantly moving member, preferably driven by an electric motor.

'.This application is similar to an ap lication filed by me on December 14, 1918, erial No. 310,558 and which was renewed on May 4, 1923, and which became abandoned through failure to pay the final fee.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like or correspondin parts throughout the several views, an in which Figure 1 is a plan view of the invention.

Fi re 2 is a side view with parts in section.

Fi re 3 is a horizontal section on the line 3-3 of Figure 2.

In these views, 1 indicates a casing hav ing an openin 2 therein, in which is located a lens 3. A sliaft 4 is rigidly supported in said casin and this shaft .rotatably supports 8. cy 'ndrical member 5 and its stub shaft 5 through which the shaft 4 passes. The cylindrical member is provided with a plurality of openings 6, which are adapted to receive the signs to be projected. The shaft 5' and the cylindrical member are given a step by step rotary movement by means of the well known Geneva cam 7 secured to the shaft 5' and engaged by a pin 8 carried by a worm wheel 9. This worm wheel is supported by a stub shaft 10 and is driven b a motor 11, the shaft 12 of which is provi ed with a worm 13 which engages the worm wheel. as the worm wheel revolves, the pin '8 thereon will engage with the cam 7 so as to give.

the cylindrical member a step by step move- It will thus be seen that ment to bring the signs in front of the lens and allow them to rest in this position for a short period of time.

A disc 14 is located in the cylindrical member and is supported on shaft 4, and this disc supports the pro'ecting apparatus 15, which is so situated t at the rays of light therefrom will pass through the openings and the films bearing the signs through the lens onto the screen. a

I provide means for extinguishing the light when the signs are moving,'and this by providing a disc 16 on stub 10, said disc having a rim 16 which is interrupted, as at 16". A lever 18 is pivotally mounted at one end to a part of the casing and said lever carries aroller 17 which is adapted to enga c with the rim 16 of the disc 16. This ro er is kept in engagement with the'rim by means of a spring 19 which is connected with the link 20 which connects the lever 18 with a switch bar 21. A spring contact 22 is associated with said bar and said bar and contact are located in the circuit of the lamp, as shown in Figure 1. It will thus be seen that when the interrupted part of the rim reaches roller 17 the spring will move the parts inwardly and cause the switch bar 21 to leave the spring contact 22 and thus break the circuit of the lamp. As soon as the end of the rim strikes the roller again, the parts are moved outwardly against the action of the spring and the circuit to the lamp is,

completed by the bar 21 engaging the contact 22.

The films bearing the signs may be secured before the opening 6 in any suitable manner, so that they can be replaced by new ones whenever desired.

It is thought from the foregoing description that the advantages and novel features of m invention will be readily apparent.

I esire it to be understood that I may make changes in the construction and in the combination and arrangement of the several parts, provided that such changes fall within the scope of the appended claim.

What I claim is:

In a projecting apparatus, including its Ido.

lens, a casing, a vertically arranged shaft rigidly mounted in the casing, a cylindrical member, a stub shaft secured to the bottom thereof through which the upper part of the stationary shaft extends, the .upper end of said stationary shaft being located in the cylindrical member, said member having sign receiving openings therein which are end of the stationary shaft within the cyarranged to be brought into alignment with lindrical member, a circuit therefor and cirthe lens, means for giving the stub shaft cuit breaking means for breaking the circuit 10 and member a, step by step movement to when the cylindrical member is being bring the openings in re 'ster with the lens rotated.

and with rest periods etween the move- In testimony whereof I aflix my si ature ments, a lighting device secured to the upper NELSON P. VJO ES. 

